armerding



Feb. 2l, 1956 A. H. ARMI-:RIDING 257355.21

WINDOW CONSTRUCTION WITH MEANS FOR HOLDING THE SASH IN OPEN POSITIONS 3 Sheets-Sheet. 1

Filed Jan. 7, 1955 Feb. 21, 1956 A, H, ARMERDlNG 2,735,521

wINDOw CONSTRUCTION WITH MEANS FOR HOLDING THE: SASH IN OPEN POSITIONS Filed Jan. 7, 1953 3 Sheets-Sheet 2 Feb. 2l, 1956 A, H, ARMERDlNG 2,735,521

WINDOW CONSTRUCTION WITH MEANS FOR HOLDING THE SASH IN OPEN POSITIONS Filed Jan. 7, 1953 3 Sheets-Shes?l 3 BY y M WWDW CGNSTRUCZHGN WlTH MEANS FOR HLLEN@ THE SASH 1N OPEN PGSITIONS Anthony Herman Armerding, North Plainiield, N. J.,

assigner to Armerding Developments, Inc., North Plainfield, N. J., a corporation of New Jersey Application January 7, 1953, Serial No. 330,129

'7 Claims. (Cl. 189-72) My invention relates to window constructions and more particularly to a novel and improved means for holding the sash in any desired position.

lt is an object of my invention to provide a novel and improved type of window construction wherein the necessity for the use of sash weights or spring balances is eliminated.

It is another object of the invention to provide means for holding the sash in any desired position, which means are readily installed and highly eliicient in use.

lt is a further object of the invention to provide a novel and improved type of window construction having a sash holding device carried by the sash which normally holds the sash against movement but which may be readily moved to nonholding position to permit free movement of the sash in either an opening or closing direction.

A st'll further object of the invention is to provide a window construction having a slidable sash with a sash holding device wherein the pressure used to move the sash also serves to move the sash holding device to nonholding position.

It is a specic object of the invention to provide a slidable window sash with a clutch plate and a springpressed lever for normally holding the clutch plate in tilted jamming position so that the window sash is held in moved position.

The invention consists broadly in a window construo tion including a sliding sash carrying a tltable clutch plate at each side normally to engage a stationary part of the window frame for holding the sash in moved position. Movable lever plates are carried by the sash and operatively connected to the clutch plates for actu-- ating the same. The sash is provided with actuating handles operatively connected to the clutch plates so that the pressure used for moving the sash is simultaneously transmitted to the lever plates for moving the clutch plates to nonclutching position.

For further comprehension of the invention and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings and to the appended claims in which the various novel features of the invention are more particularly set forth. l

In the accompanying drawings forming a material part of this disclosure:

Figure l is an inside elevational View of a window construction embodying my invention, the sashes being shown in closed position.

Figure 2 is a similar view of the bottom end of the window construction, looking from the outside, parts being broken away and parts being shown in section.

Figure 2a is a fragmentary elevational view of a corner of the window frame.

Figure 3 is a fragmentary elevational view of the bottom of the window construction, the lower sash being shown in open position and the clutching device in nonholding position so as to permit movement of the sash.

2,735,521 Patentes Feb. 21, s

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Figure 4 is a similar view but showing the clutching devices in normal sash-holding positions.

Figure 5 is an enlarged vertical sectional view taken on the plane of the line 5 5 of Figure 4.

Figure 6 is an enlarged vertical sectional view taken on the plane of the line 6-6 of Figure 3.

Figure 7 is an enlarged vertical sectional view taken on the plane of the line 7-7 of Figure 3.

Figure 8 is an enlarged vertical sectional view taken on the plane of the line 8-3 of Figure 3.

Figure 9 is an enlarged vertical sectional view taken on the plane of the line 9 9 of Figure 3.

Figure 10 is an enlarged vertical sectional view taken on the plane of the line 1li- 10 of Figure 3.

Figure ll is an enlarged fragmentary edge view of the bottom of the runner portion of a sash side rail.

Figure 12 is an enlarged part elevational and part sectional view taken on the plane of the line 12-12 of Figure 1l.

Figure 13 is a vertical sectional view taken on the plane of the line 13-13 of Figure 6.

Figure 14 is a Vertical sectional view taken on the plane of the line 14--14 of Figure 5.

With particular reference to Figure l of the drawings, a metal window frame 1 is shown with slidable upper and lower window sashes or panels 2 and 3, respectively. Each window sash includes a metal frame 4 and the usual glass pane 5. The metal frame includes a horizontal top rail 6, a pair of upright or vertical side stiles 7 and S, and a horizontal bottom rail 9. The meeting edges of the rails and stiles of the sash are beveled and fastened together in any suitable manner.

Each sash rail is folded upon itself to form a ledge 1li along its inner edge and to form a groove 11 outwardly of the ledge 1d, opening inwardly of the sash. Each rail and stile is also folded to form a groove 12 along its outer edge, opening outwardly of the sash, and the portions of each of the stiles on both sides of the groove 12 constitute runners 13 and 14. The runners 13 and 14 run or slide on vertical side rails 15 and 16 on opposite sides or jambs of the window frame. The side rails 15 and 16 have opposite flat side surfaces facing inwardly and outwardly of the frame, respectively, and approximately parallel to the general plane of the sash, and are connected at their bottom ends by a horizontal rail 17. A plastic channeled member 13 is seated on each ledge 19 and the glass pane 5 is mounted in the channeled members. The channeled members 18 are held on the ledges by strips 19 fitted in the grooves 11.

According to the present invention, a clutching mechanism is provided for holding the window sash in moved position and in the drawings the clutching mechanism for holding the lower sash 3 is illustrated. For this purpose, the bottom ends of the runners 13 and 14 of each of the upright side rails 7 and S and the adjacent bottom meeting end of the bottom rail 9 are formed with a cutout portion indicated at 20, the upper wall of the cutout portion, formed by the lower ends of the runners 13 and 14- and the grooved portion of the bottom rail 9, slanting outwardly and downwardly as viewed in Figure 12 with its plane intersecting said side surfaces of the vertical rail. The bottom rail 9 of the sash, at a point remote from each end thereof, is formed with an elongated depression 21, providing a shoulder 22 on the rail thereabove. In each cutout portion 2li, there is a clutch piece in the form of a flat plate 23 whose plane intersects the side surfaces of the corresponding vertical rail. The clutch plate is substantially square in plan and is notched at each corner to form opposed end extensions 24 and 25. A central slot 26 of a width slightly greater than the thickness of the vertical rails 15 and 16 is formed in the plate and extends inwardly from the outer edge thereof to form a bifurcated end portion having spaced and parallel legs 27 and 28 disposed at opposite sides of the corresponding vertical rail and whose longitudinal edges are angular and parallel to the side surfaces of said vertical rail. One side of each cutout portion is closed by a fulcrum plate 29 positioned along one side surface of the bottom rail 9 of the sash. The fulcrum plate is formed with a ange 30 along one long edge thereof and extending inwardly below the bottom edge of the bottom rail of the sash. A slot 31 is formed in the fulcrum plate along its flanged edge and adjacent one end thereof, in alignment with the cutout portion 20, for receiving the end extension 24 of the clutch plate 23. The other side of the cutout portion 20 is closed by a lever plate 32 positioned on the opposite surface of the bottom rail 9 of the sash. The lever plate is formed with top and bottom flanges 33 and 34, respectively, along its long edges, the bottom ange 34 extending inwardly under the bottom edge of the bottom rail 9 of the sash on the opposite side of the groove 12 therein. A slot 35 is formed in the lever plate along its bottom flanged edge and adjacent one end thereof, in line with the cutout portion 20, for receiving the extension of the clutch plate 23. The fulcrum plate and the lever plate are fastened to the bottom rail 9 of the sash by a rivet pin 36 passing loosely through aligned openings in the plates and rail. It will be noted that the rivet pin 36 passes through the fulcrum plate 29 midway its ends and that flange of the fulcrum plate by engaging the edge of the bottom rail 9 of the sash prevents pivotal movement of the plate and thereby holds the plate fixed. The pin 36 however passes through the lever plate 32 remote from its center and inwardly thereof towards its slot thereby permitting the lever plate to tilt or pivot slightly about the pin 36. The lever plate, on the side of pin 36, opposite its slot 35, is outstruck to form an opening 37, the outstruck material being bent upon itself and projecting from one side of the plate and at right angles to the same to provide an elongated handle 38 and projecting from the other side of the plate to provide an elongated ledge 39. When the lever plate is in position on the bottom rail 9 of the sash, the ledge 39 is below and in alignment with the shouldered portion 22 of the bottom rail. An elongated curved spring 40 is loosely seated on the ledge 39 with its arched body normally contacting the shouldered portion 22 of the bottom rail 9 so that it urges the lever plate 32 outwardly of the bottom rail along its end mounting the handle 38 and inwardly of the bottom rail along its slotted end as shown in Figure 4 so as to normally tilt the clutch plate 23 around the edges of the wall of the slot 31 in the fulcrum plate 29 as a fulcrum about an axis parallel to the plane of the sash into a position with the inner side walls of the legs 27, 28 oblique to the planes of the side surfaces of the corresponding vertical rail. When the clutch plates are thus tilted, the corner edge 41 of one side wall of the slot 26 of each clutch plate and the lower corner edge 42 of-the other side Wall of the slot of the clutch plate, as viewed in Figure 5, grip the adjacent side surfaces of the corresponding vertical side rail 15 or 16 of the window frame thereby holding the Window sash firmly against downward movement along the side rails of the window frame. The window sash may thus be stopped and held in any desired position along the window frame.

In order to release the window sash from the clutching action of the clutch plates and to permit movement of the sash, the handles 3S of the sash are grasped by the fingers of the operator and upward pressure exerted thereupon. This pivots the lever plates on the pins 36 thereby lifting or moving inwardly the ends of the lever plates mounting the handles 38 and moving the slotted ends of the lever plates downwardly or outwardly, as viewed in Figlre 3. The clutch plates 23 are thus tilted around the edges of the slots 31 ofthe fulcrum plate 29 as a fulcrum, swinging the clutch plates 23 so that the corner edges 41 and 42 of the walls of the slots 26 of the clutch plates are moved to nonclutching positions with respect to the vertical rails 15, 16 as shown in Figure 6. While the releasing pressure on the handles 38 is still maintained, the window sash may be moved in either an opening or a closing direction. As soon as this pressure is released, the springs 40 will automatically retract the lever plates 32 which will in turn return the arms 27 and 28 of the clutch plates to clutching relation to the vertical side rails 15 and 16 of the Window frame thereby to hold the sash against further movement.

Preferably the slot 26 of the clutch plate is of such width that its angular edges 41 and 42 will grip the vertical rail 15 when the clutch plate is disposed at an angle of approximately 12 to the horizontal as shown in Figure 5; and to prevent said angular edges from biting too deeply into the surfaces of the rail in case the clutch plate should be released during rapid lowering of the window, the upper surface of the cut-away portion 20 is preferably disposed at an angle of about 15 to the horizontal to be abutted by the clutch plate and thereby limit tilting of the plate into clutching position.

While I have illustrated and described the preferred embodiment of the invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved toy all changes and modifications coming within the scope of the invention as defined in the appended claims.

What is claimed is:

l. In a window structure, a window frame including top and bottom rails and side jambs connecting said rails, each jamb having a vertical rail projecting therefrom toward the other jamb and each vertical rail having opposite iiat faces parallel to the general plane of said frame, a sash having stiles and rails vertically slidable on said vertical rails, a clutch plate mounted in said sash to tilt about an axis parallel with the plane of the sash and perpendicular to the stile and having a slot into which one of said vertical rails extends, said slot being of a Width greater than the thickness of said vertical rail and having edges approximately parallel to said at faces of said vertical rail to grip said faces of the rail when the clutch plate is tilted in one direction about said axis, said angular edges being slidable freely along said faces of said vertical rail when the clutch plate is tilted in the opposite direction, spring actuated means in said sash and connected to said clutch plate for normally tilting said clutch plate in the rst-mentioned direction, and means on the sash and connected to the clutch plate for positively tilting the clutch plate in the second-mentioned direction.

2. In a window structure as dened in claim l, said clutch plate being bifurcated and having said slot extending inwardly from one end of the clutch plate with the inner end of the slot in spaced relation to the free edge of said vertical rail, and the longitudinal edges of said slot being parallel to said flat faces of said vertical rail and also being angular in cross section.

3. In a window structure as defined in claim l, with the addition of means on the sash to positively limit tilting of the clutch plate in the first-mentioned direction.

4. In combination, a window frame including a pair of parallel vertical rails extending along the opening in the frame, a window sash including parallel vertical side stiles and parallel horizontal bottom and top rails connected to the side stiles, the side stiles of said sash having longitudinal grooves forming runner portions on both sides of the grooves adapted to slide along the vertical rails of the Window frame, the meeting ends of the runner portions and the bottom rail of the sash having cutout portions, clutch plates tiltably mounted in said cutout portions for gripping the vertical rails to hold the sash in moved position, a fulcrum plate closing one side of said cutout portion and having a slot for supporting one end of the clutch plate at 'each side of the sash, a lever plate pivotally mounted on the sash and closing the other side of the cutout portion at each Side of the sash, said lever plates being operatively connected to the clutch plates for tilting the same, springs on the sash for normally actuating said lever plates to operative position, and handles on the lever plates for moving said lever plates to inoperative position and for moving the sash.

5. In a metal window structure as defined in claim 1, wherein the edges of said slot in the clutch plate are angular so as to grip said vertical rail when the clutch plate is tilted in one direction to an angle of about 12 to the horizontal, and the sash has a surface to be abutted by said clutch plate and disposed at an angle of about 15 to the horizontal to limit tilting of the clutch plate in said direction.

6. In a Window structure as defined in claim 1, said side Stiles of the sash having longitudinal grooves in their edges, each slidably receiving one of said vertical rails,

6 and said slot in the clutch plate being in substantial alignment with one of said grooves.

7. A window structure as defined in claim l, said clutch plate having extensions on each of the opposite edges thereof that are parallel to said slot, and said sash having an opening in which one of said extensions is loosely fulcrumed, and the last-named means includes a lever pivotally mounted on the sash and having an opening in which the other of said extensions on the clutch plate is pivotally fitted.

References Cited inthe le of this patent UNITED STATES PATENTS 85,863 Sible Ian. 12, 1869 90,558 King May 25, 1869 873,186 Sweetland Dec. 10, 1907 2,675,590 Armerding Apr. 20, 1954 

